I once (early in my career) answered a page from my cell phone without blocking the number. Big mistake. Months later the patient called me with some random, minor question. Months after that her FRIEND called me with a question and told me that the original patient had given her my number. Not cool. While yes sometimes I give my number to "pet" patients I expect them to respect my privacy and family time and not call me all hours of the day and night. I especially hate being friended by a patient on Facebook so that they can ask for refills or samples. I think many people lack common sense and don't understand boundaries. I agree with OP, being called at home about a minor issue is inappropriate. Yes, she made contact first but that doesn't make it a free for all.

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Wife. Midwife. Mother. Not necessarily in that order depending on the day!